What is a partially disclosed principal?

A partially disclosed principal refers to a situation where the agent is acting on behalf of a principal whose existence is known to the third party, but the specific identity of that principal is not disclosed. This means that the third party is aware that they are dealing with an agent who represents someone else, but they do not know who that principal is.

When a partially disclosed principal is involved, the agent may enter into contracts or conduct transactions while still maintaining some level of anonymity for the principal. This can be significant in various business dealings, as it allows the principal to leverage the agent's actions without being directly identified.

In contrast, other options describe situations that do not accurately define a partially disclosed principal. A principal with complete transparency would be fully identifiable, and an unknown principal would represent a situation where the agent does not inform the third party of either the existence or the identity of the principal. The description of a principal known only to the agent does not reflect the essential element of the third party's knowledge about the existence of a principal. Thus, A is the most accurate characterization of a partially disclosed principal.